All Version 4.50 mods are fully compatible*** with both the "2014 Stable 1.13 Release" (7435) + JA2_113_UpdateForRelease7435_English_7609 and the most recent "Unstable" Single Click Installer (SCI): SCI_Unstable_Revision_7679_on_GameDir_2188 (December 15, 2014). I even managed to get a few hours worth of testing in this time. Keep an eye on the sub-forum for announcements on plans for v5.00 in the near future.